I have a nose cone from an ultrex motor that has the MDI transducer in it - the transducer is there but the cable has been cut and would need to be spliced or have a new transducer mounted. Its from the 24v 80lb model. I swapped to a regular nose cone as they both are the same size - the issue swapping back and forth is figuring out how to run the cabling for the transducer. I don't know if anyone could use this or would want to try and swap their regular motor to the MDI with this part - but like I say you would need to swap or repair the transducer part but the nose cone will bolt right up using your existing through bolts and rubber gasket o ring.
$40 shipped. https://imgur.com/gallery/OrAnRjP